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1:". ARMSTRONG 8u N. W. VANDEGRI'FT.

VISE.

No. 383,165., Patented May 22, 1888i.

WITNESSES llNiTnn STATES PATENT FRANK ARMSTRONG AND NATHANIEL vW. VANDEGRIFT, OF BRIDGEPORT, CONNECTICUT, ASSIGNORS TO THE ARMSTRONG MANUFACTURING COM- PANY, OF SAME PLACE.

VISE.

SPECIFICATION forming partei' Letters Patent No. 383,165, dated May 22, 1888.

Application filed January 15, i887. Serial No. 224,470. (No model.)

T0 @ZZ when@ it may concern:

Be it known that we, FRANK ARMsrRoNG and NATHANIEL W. VANDEGRIFT, citizens of the United States, residing at Bridgeport, Fairfield county, Connecticut, have invented new and useful Improvements in Pipe or Rod Vises, of which the following is aspecitieation.

This invention relates to certain new and useful improvements in pipe or rod vises; and it consists in the arrangement and combina tions of parts, as will hereinafter be more par-- ticularly described, and pointed out in the claim.

The principal object of the invention is toV provide a vise of the character referred to which is so organized as to either be employed as a portable or stationary bench-vise, other objects more fully appearing from the description hereinafter following.

Before proceeding with the details of construction and arrangement of our invention we desire to state that we are aware that a pipe or rod vise possessing these combined characteristics is not new, broadly; but, so far as our knowledge on the subject extends, we are not aware that a vise possessing our elementary features of improvement has ever heretofore been devised.

Referring to the accompanying drawings, Figure l represents atop or plan view of vise embodying the features of our invention, and Fig. 2 is a longitudinal sectional View thereof on the line @c x. Fig. 3 is a transverse sectional AView on the line y y, Fig. l. Fig. 4 isa vertical front elevation of the vise by which to more clearly indicate the arrangement of legsockets. Fig. 5 represents in detailand partly in section a detached portion of the frame, together with the adjustable stationary jaw and the devices 'for holding it in its positions of adjustment; and Fig. 6 is a sectional detail illustrating the manner of formation of the rear leglsocket as an integral part of the bed or base plate.

Referencebeing had to theseveral parts by the letters marked thereon, Arepresents the base or bed plate of our vise, the same being east or formed with an upright longitudinal frame or rail, a, having notches or serrations Z in its top for a portion oi' its length, the said rail hav- 5o been lifted and the movable jaw moved to such position outwardly as would bring the pawl to a point a degree beyond that at which all of its teeth would be engaged by the last teeth of the rail, by virtue of a lug or shonlder, l, on

one side thereof, the said pawl when lowered 6o will not be allowed to descend far enough to have any of its teeth engaged, thus obviating any breakage of teeth of the pawl, as is apt to occur it' only a portion thereof be held to engagement in the use or operation of the vise. 6g

B represents the movable jaw, which surrounds and travels the rail b, as shown, and which is screw-threaded internally, as at e, for the reception of the operating-screw f, having its bearing in the partg of the frame or rail a,

and provided with a suitable handle, 7b. The said jaw is caused to move back or forth, according to the direction of rotation of the screw, as is evident.

C represents the stationary adjustable jaw,

tted to the rail in like manner as the jaw B, the said jaw being castwith a recess, z', between the walls of which is pivotally held by a pin, j, the weighted pawl or detent D, provided on the under side of its lower end with 8o teeth k, for taking into or engaging the notches or serrations b in the top of the rail. The tendency of the weighted end of the detent D is to throw its lower end downward and inn ward; hence it will be seen that the jaw C may be moved forward toward the other jaw without lifting ythe detent; but on a pressure being brought to bear upon the said jaw C from the opposite or reverse direction the detent will be firmly held to its engagement with 9o the teeth of the rail. The said pivoted pawl or detent is provided with a small lng or shoulder, Z, on one side of its lower end, which is for the purpose of resting upon the upright pin d and maintaining the teeth of the pawl out of g5 engagement entirely when the said pawl has been brought to a point a degree beyond that at which all of its teeth would be engaged by the teeth of the rail.

Held in recesses m ofthe jaw C by pins a u are two supplemental jaws, o o, while secured in like manner within the jaw B by pinp is a -similar supplementaljaw, the latter designed to enter between the two former, and each of the said supplemental jaws is formed with angular notched edges for gripping and holding the pipe or other work. The said jaws 0 o and p can be removed when it is desired, thus enabling the vise to be used for other purposes than for holding pipes and rods.

It will be seen from the foregoing description that the jaws B and G can be so regulated and adjusted as to suit all sizes of work, and that at Whatever position brought the latter jaw will always be firmly held or secured against the pressure necessary to be exerted for holding the work.

It should be here stated that the sides of the jaw B are so recessed or formed at g as that the supplemental jaws o o will be received or accomlnodated when the opposing sides ofthe two main jaws are brought together.

E E represent two metal sockets arranged at the front of the vise, and F represents a similar socket arranged to the rear of the plate A about centrally of the others. These sockets diverge outwardly and downwardly, and are for the reception of legs, which form a tripod for the support of the device, each socket being provided with a set-screw, r, for tightening the legs in place. We may either cast these sockets with or make them detachable from the plate; but we prefer to cast or form them separate and attach them to the plate,

the drawings herein representing the two front sockets as being east with a strip, s, connecting the two, and by which they are secured to the plate A, beneath the rail, by means of bolts and nuts, as shown, the rear socket, F, being secured to the under side of theplate byabolt and nut in like manner. In casting the latter socket with the plate we prefer that its point ofjuncture or unison therewith shall be above instead of beneath the same, as is the case when formed separate and attached. The platepA is formed with suitable holes or openings, t, by which the vise may be secured to a bench or like support when the leg` sockets are detached.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is-

In a pipe or rod vise, the bedlplate A, formed with the longitudinal rail notched or serrated on its top surface and having the upright pin d, in combination with downwardly-diverging sockets removably secured to said bed-plate and adapted to receive supporting-legs, a movable jaw working on the rail and operated by a screw, and astationary adjustable jaw having a pawl engaging the teeth of the rail and provided on one ot its sides with the lng or shoulderl, substantially as described.

In testimony whereof we have hereunto set our hands in the presence of two subscribing" witnesses.

FRANK ARMSTRONG. NATHANIEL \V. VANDEGRIFT.

W`itnesscs:

IsiiAo C. FowLnn, F. T. STArLns. 

